Receiving UDP packets from embedded board

Hi, I want to use UDP communication between MATLAB applicaton and embedded board, UDP connection is established successfully.

Also, when I send first command to embedded board from MATLAB application,I am getting expected data, now when I am trying to modify the data from MATLAB application, I am not able to get modified data, MATLAB application is receiving previous data even after modifying data.

I also tried to flush the input and output buffers, also tried to increase the InputBufferSize, but not able to get modified data.

For verification purpose, I write same application in python, I am able to get modified data after 10-15 seconds after modification.

Anybody have any idea regarding this, please tell what I am missing ?

Thanks.